{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease"], "input": "CONCLUSIONS The DPC4 gene may play a role as a tumor - suppressor gene in a fraction of colorectal cancers ; however , while allelic loss at 18q21 is very often seen in colorectal cancers , only a minority show DPC4 mutations , suggesting that there might be another tumor - suppressor gene in this chromosome region . ."}
{"Disease": ["colorectal cancers"]}